Scribing device



July 27, 1937. H. KASSEBAUM 2,088,063

y scBING DEVICE I Filed Apr-i1 22, 1936 l ljwbazuf gy @oz/7M 4f" 51 yJiymzyrf l PatentedJuly 27, .1937

-lwrlsls'r OFFICE l vaosaoes sommo Device Heinrich Kassebaum,'Halle-on-the-Saale, Germany Application April 22, `1936, Serial No.35,291!

- In Germany December 31,` 1935 `o laim.- (ce 33-23) My inventionrelates in general to scribing and has more particular reference to apantographic instrument more especially adapted to scribe by tracingfrom a master pattern plate or template'. -5 An important object of theinvention is to provide scribing apparatus'adjustable to produce, fromthe same pattern plate, scribed characters ofvarying sizeand slopeo-r-inclination. A further object is to provideapparatus adjustl0 ableas aforesaid without changing the Aspacer'nent of the tracingandscribing points.

Another object is to accomplish ease of operation by providing forguiding themechanism at or nearA its center of gravity.' Another objectis to provide apparatus of the character mentioned comprising a ruler orbase forming a sliding mounting for a pantographic arm, including meansforl disengaging the arm from the sliding mounting at any 'point in itsY length.

Another object is to lprovide apparatus of the l character mentionedincluding a mounting in the former a ruler of low overall height, theruler `affording 'a mounting for fa master pattern or template and asliding mounting for a pantographic arm embodying a scribing pointand atracing point adapted to trace on the template.

4 Numerous other objects, advantages and inherent functions of theinvention willbeeome' ap- 30 parent as the same is 4vmore fullyunderstood from the following description which. taken with theaccompanying drawing, discloses a preferred form of the invention.'

, Referringto the drawing:

3 5- Figure 1 is a top plan view of scribing'apparatus embodying mypresent invention;

Figures 2, 3, 4 and 5 are enlarged-fragmentary views showing variousadjusted positions of the` apparatus; and l y 40 Figure is a sectionalView taken substantially along the line 6-3 inFigure 1, l

To illustrate the-invention I -have shown. on the drawing, a scribingapparatus 9 comprising support means carryingI a scribing point Il, a.

45 tracing point I3. land a'slidin'g pivot Il, The

support means comprises a preferably/'extensible arm carrying thesliding pivot I3. preferably at' one end of the arm, the arm alsocarrying a` swingablecross piece 2| 'pivoted thereon. prefer- 50 ably atthe other end oi' the arm. and the arm,

as shown, preferably comprises the relatively and adjustably extensibleportions I1 and Il. The cross piece 2-I carries lthe scribing andtracing I 'points I I and I3,and also is provided with a stop 55 plate2l. l'. hesliclin'gpivot vI l comprises'adisk ,adapted to ilt into aslot in a, slide element 21 which travels .in a guide I23 formed in abase l 4plate or support 3l. The support 3l also affords a mounting fora tracing template 33, the mount'- ing providing a shouldered abutmentadapted 5 to engage an edge of the template for the purpose of aligningthe same with the groove 25. 1 The sliding arm portion I1 preferablycarries the sliding pivot I5 at one end thereof and extendsy adjustablywithin the extensible portion I9, which 10 preferably carries suit-ableclamping means for securing the parts in adjusted position. The portionI1 at or near its end remote from the sliding pivot I5 isformed with astop, preferably comprising a pin 3G carried on thearm portion l5 I1.'The stop plate 23 is adapted to cooperate with the pin 36 when theextensible arm isin collapsed or compres-sed position and is alsoadaptedwhen the'arm isfextended, :to cooperate directly with the armportion I9 so that the cross piece 2| may 20 be securedselectively in'any one of the four positionsfillustrated in Figures 2v through 5.-`The 'cross piece 2| may thus be adjusted atvariou's inclinations withrespect to the arm portion I9 and thereby providefor four types ofreproduc- 25- tion-from'the tracingtemplate 33, tofwit, small u andlarge lettering in upright or inclined form; and the parts mayfbearranged so that all letters produced from a'given template may haveun'iform width, regardless of height or inclination. 30

1l When the sliding arm portion I9 is extended one canobtain large orsmall upright lettering,

large letters being obtained Vby turning the cross piece 2| to the,position shown in. Figure 2, wheref in 4a flange 31 at the lower portionof the plate 35 23 engages the edge of thearm portion I9; small lettersare obtained' by turningthe parts to the position shown in Figure 3,in-which a downf wardly turned flange 33, at the upper end of the plate23.-engages the side of the arm portion I3. 40

. When the sliding arm I9 is in depressed position so that the pin 38 isin position toI engage thestop plate 23, one can produce either large orsmall inclined lettering, large letters being produced by. turning thearm 2i to the position 45 I' shown inFigure 4, wherein va shoulder 4I onthe plate 23 engages the stop pin 36; small inclined letters beingproduced by turning the arm 2| to the position shown in :Figure 5,wherein a shoulder 43 engages the pin 33. l -f The sliding disk I3 isguided in the groove 25 4and is held in place by a protrusion 45 formedon the way 21 at one side only, so that the disk .ls prevented fromleaving the groove yvertically vwhen in theposition for lettering. butcan be 554 easily removed by tilting .the same when it is de is thenmoved along the character inscribed on the template and thus acts as aguiding point, a second guiding point being provided by the slidingpivot disk I5 operating in the groove 25,

which thus restricts the movement of the writing point H so that acharacter corresponding to that being traced on the template is writtenAby the' scribing point Il.

It is thought that'the invention and its numerous attendant advantageswill be fully understood from the foregoing description, and it isobvious that numerous changes may be made in the form,

construction, and arrangement of the severall parts of the illustratedapparatus without departing from the spirit or scope of my invention orsacrificing any of its attendant advantages, the form herein describedbeingmerely for the purpose o'f demonstrating the invention.

-I claim:

l. Scribing apparatus comprising an arm, means to mount said arm forsliding movement at one end, a lever carrying a writing point and atracing point for use on a lettering template, said lever pivoted onsaid arm'at a point remote from the mounted end thereof, and cooperatingstop means on said lever and on said arm Vfor holding the lever in aselected one of a`plurality of relative positions with respect tosaidarm, whereby to enable the production of a plurality of characterforms from a single template.

2. Scribing apparatus comprising an arm, guide lmeans on said arm andadapted for sliding engagement in a guide, said arm having an extensibleportion, and a lever pivoted on said extensible portion and carrying 'awriting point and a tracing point adapted for use in a `letteringtemplate, said lever carrying stop means adapted to cooperate with saidextensible portion when the same is in` extended position and with atensible portion to provide-for the production of aosaoos a selectedIone of avnumber of character forms from a'single template.

3. Scribinglapparatus comprising a sliding arm l having a disc at oneend adapted for engagement in the groove of a ruler which affordssupport fpr a lettering template, said sliding arm having atits otherend anextensible portion, a levier-carrying tracing and writing lpointsand pivoted on said. extensible portion, said lever, carrying a stopplate adapted vto co-operate with stop means on said sliding arm wherebyto enable the production of vlarge or small characters in a variety ofinclinations from a single template.

4. Scribing apparatus comprising an arm having a flanged slide elementthereon and adapted for sliding engagement in the slide-way of a rulerwhich also affords support for a lettering template, a lever carrying awriting point and a tracing point for use on the lettering template,saidv lever being pivoted on said arm at a point remote from'said slideelement, cooperating stop means' on said lever and on said. arm forholding the lever in a selected one of a plurality of relative positionswith respect to saidy arm, whereby to enable the production of aplurality of character forms from a single template, said slidewaycomprising a groove open on one side lanti having a projecting vilangeat the other to interlockingly receive the sliding disc when theapparatus is in Scribing position while permitting de- 'tachment of thedisc from the Way merely by tilting the sliding arm from Scribingposition.

5. Scribing-apparatus.comprising an arm, guide means on said arm andadapted for sliding engagement in a guideway, said arm yhaving anextensible portion, and a lever pivoted on said extensible portion andcarrying a Writing point and a tracing point adapted for use on aletter"- ing template, said lever carrying a stop plate providingopposed abutments adapted to cooperate with a stop pin on said arm whenthe extensible portion is in a predetermined adjusted position on thearm, said plate also providing opposing shoulders in position tocooperate with said extensible portion whereby to hold said lever in oneof a number of angularly adjusted positions on said extensible portionto enable production of a selected one of a number of character formsfrom a single template. y

HEINRICH KASSEBAUM.

